Three to four months should be good enough to achieve your target score. If you are willing to study dedicatedly for that period, you are sure to achieve your goal. I believe you may benefit from taking a GMATPREP course. If you are willing, there are some great GMAT prep companies that can help you with your preparation.
In order to make an informed decision I would highly encourage you to go to their websites and try on their free trial and decide for yourself which one do you like better.
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In order to make an informed decision I would highly encourage you to go to their websites and try on their free trial and decide for yourself which one do you like better.
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